Unreal Engine Issues
Unreal Engine Issues
Normal voice chat does not activate the microphone when Mic Threshold is zero
UE - Audio - Aug 11, 2020Voice chat does not work when speaking into the microphone with a normal voice and a Mic Threshold of 0. We have to blow into the microphone or speak loudly for voice chat to work. ...
Loading instanced static mesh causes memory leak in packaged game
UE - World Creation - Worldbuilding Tools - Foliage - Mar 3, 2021The leaking variable is UInstancedStaticMeshComponent::InstanceDataBuffers. The memory block is passed to InitPerInstanceRenderData() via InstanceDataBuffers.Release(). But the function doesn't mana ...
Path generated in wrong location from mesh in hidden sublevel
UE - AI - Navigation - Apr 30, 2021REINST classes are available in the class reference drop down
UE - Gameplay - Blueprint Editor - Sep 28, 2021This doesn't seem to occur every time I run the editor, I can't get it to repro consistently Note: It is possible that this is happening in blueprints based off of a native c++ class has been rel ...
Get wrong primitive scene data on mobile preview with GPUScene enabled
UE - Rendering - Architecture - Shaders - Apr 27, 2022Blueprint actors can not be casted until they have been opened after migration or being upgraded to a more recent engine version
UE - Framework - Blueprint - Jan 5, 2023This is not a regression tested in //UE5/Release-5.0 CL20979098 After migrating an asset from an older engine version or upgrading a project to newer version Blueprints carried over can not be cast ...
HDRi backdrops show default material on Meta Quest
UE - Platform - XR - Jan 26, 2024Decal normals causes underlying shadow masks to become visible
UE - Graphics Features - Oct 14, 2024When using a Translucent or Modulate blend mode decal, the underlying shadow may become visible with VSMs, RT Shadows, and with the Pathtracer. When no normal is applied and a sphere is used to tes ...
Niagara mesh particles invalidate lighting when "Cast Shadow" is enabled with Hardware Ray Tracing enabled
UE - Rendering - Graphics Features - Lumen - Jun 24, 2025Lumen HWRT, combined with Niagara Mesh Renderer, can cause the Lumen Scene to be reset, resulting in a sudden change to indirect lighting. ...
Inconsistent Details Panel Focus Behavior On Enter Pressed for Blueprint-Added Components
UE - Editor - Verse Class Editor - Jul 2, 2025When editing a component property in the level viewport, if the component was added via the Blueprint Editor, pressing Enter after changing a value causes the details panel to lose focus. This inter ...